A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6130-00-010-1042
NSN 6240-01-145-4916
NSN 2925-01-159-8312
NSN 6650-01-179-9349
NSN 5915-01-483-2046
NSN 5835-00-821-8555
NSN 5910-01-314-7227
NSN 6105-01-467-2990
NSN 5990-01-651-0170
NSN 2925-01-660-0669
NSN 5999-00-477-7589
NSN 5935-00-153-3130